Fluval 4 Plus Foam Insert, 4-Pack

This is simply a foam filter that removes most refuse from the water. It stays operational for a fair amount of time considering the volume and number of critters. While other filters are more effective, here you get what you pay for: a simple, easy to clean filter that gets rid of most of the "yucks".

I was pleased to find this product because I drove all around my town to different pet stores looking for it. It allowed me to get my aquarium back up in no time.

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Works well. The filter itself has become not useful for the purpose. And the foams seem to go out pretty fast. Just wished they lasted a little longer. Probably gonna look into buying a new filter for my water turtle

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I find that these work better if replaced after every tank cleaning. (I have a turtle, and because the filter is so powerful, I wind up cleaning his tank maybe once a month.) So far I've reused the sponges twice, and I notice that the tank gets dirtier sooner. So yeah, definitely replace these and they do a spectacular job!

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I've used several filtration units for my turtle tank and the Fluval Plus4 is definitely the best so far. The foam pads can be used (if cleaned regularly)for a little over two months and will with a little chemical aid keep the water smelling mostly like water. When supplemented by a water polishing(poly) or carbon pad, the maintenance level rises but the water clarity improves very much. Short of a long sand and gravel runoff and recirculating into a very big tank,nothing has kept my turtles' water as clean with bi-weekly or longer gaps between filter washing.(weekly rinsing is the recommended interval for maximum efficiency and pump life. But, who has the time?)

The filters will clog completely if ignored too long, but if your aquatic reptiles are IN your home, you probably already know that they will motivate you to clean the filter some time before the plus4 will clog completely. I cannot say that about any of the other brands of filter products I have used.

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